tree 555df001b47f27ae0a4339725e9ba06175e94ff1
parent 5efe08cf685f33f562566dc68b6077b6f6a4f706
author Frederic Weisbecker <fweisbec@gmail.com> 1273192422 +0200
committer Frederic Weisbecker <fweisbec@gmail.com> 1273405530 +0200

perf lock: Always check min AND max wait time

When a lock is acquired after beeing contended, we update the
wait time statistics for the given lock.
But if the min wait time is updated, we don't check the max wait
time. This is wrong because the first time we update the wait time,
we want to update both min and max wait time.

Before:
	Name   acquired  contended total wait (ns)   max wait (ns)   min wait (ns)
	key          8          1           21656           0           21656

After:
	Name   acquired  contended total wait (ns)   max wait (ns)   min wait (ns)
	key          8          1           21656           21656           21656

Signed-off-by: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Hitoshi Mitake <mitake@dcl.info.waseda.ac.jp>